MASTER HE
SPTMHEE3T16FREN
21
In addition to the cards above mentioned the following communication options are available:
e) Multi I/O Card:
an accessory mounted inside the UPS that converts external signals from the UPS (e.g. ambient
temperature, battery room temperature, etc.) into signals by means of relay contacts or on an RS485 serial
output in MODBUS protocol.
f) Contact card with programmable power relay
(5A-250V) for connecting a remote control device. The
following default alarm signals are available:
a. Load on inverter;
b. Load on mains power;
c. Low battery;
d. Overload;
e. Over-temperature;
f. Load on maintenance by-pass.
There are also two programmable inputs (24VCA) for: “battery charge inhibition” and “by-pass inhibition” that can be used
when is connected a generator-set.
The UPS is predisposed to house two alarm cards, having so up to 12 programmable alarms and 4 inputs. The settable
alarms are listed in the following table:
ALARM
DESCRIPTION
INTERFERENCE ON BYPASS LINE
Disturbance on the bypass line (e.g. voltage peaks,
harmonic distortion etc.) while the voltage and frequency
values remain within acceptable limits. The inverter is not
synchronised with the mains power supply.
MANUAL BY-PASS, SWMB-ON
SWMB Manual by-pass switch is closed
FAULTY BY-PASS VOLTAGE or SWBY, FSCR OFF
This alarm is present if the input voltage of the bypass
line is not correct, or the SWBY switch is open.
FAULTY MAINS SUPPLY VOLTAGE or SWIN
OFF
The voltage supplied to the rectifier is incorrect or the
SWIN switch is open. The battery is in discharge mode.
PRE-ALARM FOR LOW BATTERY VOLTAGE
The battery voltage is below the calculated value to
furnish about 5 minutes of autonomy; the pre-alarm value
is settable.
DISHCHARGED BATTERY OR BATTERY SWITCH
(SWB) OPEN
The battery is discharged or the switch is open.
LOW POWER VOLTAGE or OVERLOAD
The power voltage is lower than the nominal value or
there is an output overload.
OUTPUT OVERLOAD
The inverter is overload status.
BY-PASS FOR OUTPUT VA < AUTO_OFF VALUE
This alarm is present when the power expressed in %VA,
absorbed by the load is lower than the "AUTOOFF" value.
(function to be activated when the system is powered up).
INTERNAL FAULT: number
An internal anomaly is present
TRANSITORY BY-PASS
The load is powered temporarily by the bypass line (e.g.
for transitory current peaks)
BY-PASS FOR OVERLOAD ON OUTPUT
The load is powered by the bypass line for overloads on
the inverter in excess of the set limits.
BY-PASS COMMAND ACTIVE; DISABLED.
This alarm indicates when the load is forced over to the
bypass line using a command on the front panel. The
inverter is switched off.
REMOTE COMMAND FOR BY-PASS: ACTIVE/
DISABLED.
This alarm indicates when the load is forced over to the
bypass line via a remote command. The inverter is
switched off.
OVERTEMPERATURE or FAULT ON FANS.
This alarm indicates an internal overtemperature caused
by an increase in environment temperature outside the
set limits or due to malfunctioning of the fans.
FAULTY INPUT PHASE SEQUENCE
The input sequence phase for the by-pass line is
incorrect.
